Back sleeper pillow



FIG. 1 is a top, side perspective view of a back sleeper pillow showing my new design.

FIG. 2 is a top plan view thereof.

FIG. 3 is a left side elevational view thereof.

FIG. 4 is a right side elevational view thereof.

FIG. 5 is a front elevational view thereof.

FIG. 6 is a rear elevational view thereof; and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a back sleeper pillow, as shown and described. 